used 460
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New User
Joined: Dec 2001
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used 460
My 79 460 bit the dust and I have found one in a 70's lincoln at a salvage yard for 250.00. It starts and runs but it has some smoke from the tail pipe. The man at the salvage yard said it has been sitting a while and that is why it is smoking, but it will clear up. Any help would be much appreciated.
Elder User
Joined: Feb 2001
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From: atl
used 460
hey man, what color is the smoke? if its white, its oil, and if its black, its runnin rich. if it is white, it could be leaky valve seals, not too difficult to fix. if its rings, its time for a rebuild. if its black, then its carb, and that will take some tuning. have you looked into rebuilt motors? you can get one from autozone for like 899. just my two cents
mike
mike
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Joined: Jan 2008
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used 460
Sorry, Blue smoke is OIL Burning
Black Smoke is TOO MUCH fuel
White Smoke is Coolant usually meaning a head gasket.
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Black Smoke is TOO MUCH fuel
White Smoke is Coolant usually meaning a head gasket.
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Postmaster
Joined: Aug 2001
Posts: 2,882
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From: Nevada
used 460
That engine is over 30 years old, so you can be pretty sure that the valve seals are in bad shape and most of the cork gaskets they used during that era have dried up. The compression ring could also be clogged with carbon buildup. If you want any degree of reliabilty out of it for an extended period of time, a basic rebuild should be a consideration.
Senior User
Joined: Jun 2002
Posts: 423
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From: Oklahoma
used 460
If you do a basic stock rebuild, replace the oil pump shaft with the ARP part and use the early timing set that eliminates the factory 4 degree cam retard. (The keyway will be directly below the timing dot.) Replace the valve springs when you do the valve job even if you keep the stock cam.
Senior User
Joined: Jan 2002
Posts: 248
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From: North Central Washington
used 460
WHY get rid of the 4 degree timing retard? What will that do? Also, if you do that, what about trying to apss emissions tests?
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Postmaster
Joined: Aug 2001
Posts: 2,882
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From: Nevada
used 460
A 4 degree timing retardation was built in to all 460 factory timing sets from 1972 on. It retarded the timing in an effort to reduce emmissions. It also took a big slice out of available hp and torque. If emmissions testing is an issue where you live, talk to someone who has experience with this particular situation. Improved aftermarket carburetors and manifolds such as Edelbrock are CARB approved (the CA regulations most federal standards are based on) and most often run cleaner with straight-up timing in a newly rebuilt engine than the old 4 degree retarded timing sets.
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Senior User
Joined: Jun 2002
Posts: 423
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From: Oklahoma
used 460
Even with a stock cam, eliminating the 4 degree retarded factory setting will improve low-end torque and response. With most engines, advancing a cam shifts the powerband down in the rpm range while retarding it does just the opposite. I did this with my '77 Marquis, recurved the timing advance, installed a shift improver kit in the trans and added a Powermax muffler. The improvement in throttle response and fuel mileage was quite noticeable for in-town driving.
